warning from the pentagon that the country s rapidly expanding its nuclear arsenal. could america s adversary have hard-to-detect missiles? aaron rodgers benched: the n.f.l. s reining m.v.p. tests positive for covid. did he lie about being vaccinated? 156 miles per hour tonight, the shocking details of the early-morning crash involving a raiders wide receiver that killed a 23-year-old woman. and nursing school boom: amid the pandemic, an increase in applications for students to become america s future heroes. this is the cbs evening news with norah o donnell, reporting from the nation s capital. o donnell: good evening, to our viewers in the west and thank you for joining us. we begin with the new wave of covid vaccinations ramping up tonight for kids 5-11 years old with pfizer s mini-dose getting the green light from the c.d.c. late tuesday. health officials say it s a major breakthrough with more than 2,000 schools in recent months stopping in-person learning bec